Payments Integration Lead
London/Hybrid
12 months
Outside IR35, Competitive daily rate
Why Apply?
This is a high impact opportunity to lead critical system integrations during a major payments processing platform migration. You will take ownership of end-to-end payment processing integrations, ensuring operational stability and technical excellence across authorisations, clearing & settlement, fraud, tokenisation, and reporting.
Responsibilities:
Lead the design, delivery, and validation of system integrations between the existing processor platform and the new cards processor.
Analyse and define integration requirements for real-time and batch flows, covering authorisations, clearing & settlement, fraud, tokenisation, customer servicing, and reporting.
Design and validate interface specifications, messaging formats, APIs, file exchanges, and event flows in line with bank architecture standards and card-scheme requirements.
Support integration build and configuration, resolving interface defects, data mismatches, performance issues, and operational hand-offs.
Ensure end-to-end integration testing, cutover readiness, and operational stability in collaboration with test, data migration, and production support teams.
Identify and manage integration risks, dependencies, and non-functional requirements such as resilience, latency, scalability, and monitoring.
Requirements:
Extensive experience in payment processing operations and system integration, with strong technical knowledge of authorisation, clearing & settlement, and card-scheme standards.
Previous experience delivering processor migrations or complex platform integrations.
Familiarity with ISO 8583 messaging, APIs, event flows, and file exchange protocols.
Strong problem-solving skills to troubleshoot interface defects and performance issues.
Proven ability to work with both business stakeholders and technical engineering teams.
Knowledge of fraud controls, tokenisation, and operational support processes is highly desirable.
We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation or age.
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